Looks different to the Maule....!
try the Main Stateroom in the President Coolidge at Santo,- some soldiers may have lost their wedding rings as they jumped ship....
or the safe in the aft smoking lounge in the seaplane on the bottom in the Harbour - the purser may not have cleared it before it sank....
A yacht I owned once, ended up on the bottom of that harbour in a cyclone, but the aircraft engineer who bought it would have taken off anything of value when he raised it....Hey John..?
All the best, Paul..